Mouth breathing directs everything you breathe into your lungs. Humidifies. Your nasal passages humidify the air you inhale. Your mouth doesn't typically do this, which is why some mouth breathers wake up with dry mouth or a sore throat.
Mouth breathing directs everything you breathe into your lungs. Humidifies. Your nasal passages humidify the air you inhale. Your mouth doesn't typically do this, which is why some mouth breathers wake up with dry mouth or a sore throat.